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Opinion: Politicians are swimming in a ‘sea of scrubber ignorance’

Lawmaking framework of most countries formed by politicians without technical understanding of domain.

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Scrubber technology firm Pacific Green Technologies (PGT) on Monday (12 August) published an article ‘Politicians Are Swimming In A Sea Of Scrubber Ignorance – The Shipping Industry Needs To Educate Them’ explaining legislators appear to be making judgements on the ban of open loop scrubbers at ports based on “common sense” instead of science:

During World War II, the legend goes, the American military sought help from statistician Abraham Wald, a senior member of the elite, but secret, Statistical Research Group.
Wald was asked to advise on where would be the most efficient place to install armour on a plane.

The military had statistics taken from all the planes that had returned from combat. The data showed that the least damage by far was found on the engines. Yet, this was where Walden recommended adding armour reinforcement.

The Air Force were surprised. Wald explained that the data was based only on planes that had returned. To identify the aircrafts’ weakness it was necessary to look not where the bullet holes of surviving planes were, but where they weren’t. That was likely where the lost aircraft had been shot.

The most obvious answer to a question is not always the right one.

Yet, in answering the question of how best to manage the environmental concerns of coastal waters, legislators appear to be making judgements based on “common sense” instead of science.

Recently, China’s Maritime Safety Administration (MSA) published a draft bill that would effectively ban the use of open loop scrubbers in Chinese waters.

The bill follows a ban earlier this year on the use of open loop scrubbers in specific areas, and threatens to extend that ban to all coastal regions within 12 nautical miles from the baseline of China’s territorial sea and regions near the southern island province of Hainan.

If the bill is adopted, only hybrid or closed-loop scrubbers will be permitted in these waters when IMO 2020 takes effect in January. Ships utilising open loop scrubbers will need to switch to IMO 2020-compliant fuel.

The rationale for this decision? It corresponds with China’s war on pollution.

A similar argument was offered by the Maritime and Port Authority of Singapore (MPA) late last year when it announced that it would ban open loop scrubbing in its waters from 1 January 2020.

However, in neither case have the authorities offered any scientific corroboration for their decisions.

Part of the problem is a structural one. The lawmaking framework of most countries is formed by politicians who do not have a technical understanding of the domain in which they are being required to legislate.

At best, they base their decisions on expert advice, but their motivations are routinely political. And increasingly it is politically expedient to vote in favour of the environment.

This is, in effect, a good thing. But not when the understanding of the environment’s wellbeing is skewed.

It’s clear to see how legislators arrive at the conclusion that open loop scrubbers pose a threat to marine health. Open loop scrubbers use seawater to clean ship’s exhaust gases, the natural alkalinity of the water helping to neutralise the sulphuric acid that is formed as a byproduct.

The wastewater from this process is discharged back into the ocean, along with the sulphur compounds that have been cleaned from the exhaust gases.

To the layman, which includes almost all politicians and the voting public who keep them employed, washwater being discharged into the sea sounds dangerous. Surely, depositing sulphur into the ocean must be bad?

Well, no.

The naturally-high sulphur content of the world’s oceans means that the additional sulphur from scrubbing washwater will represent a tiny fraction of change. Apart from a small number of shallow or uniquely sensitive marine ecosystems, the environmental impact of open loop scrubbing will be negligible.

A recent report released by Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concluded that the operation of open loop scrubbers with high sulphur fuel oil is not only safe, it is also preferable to burning low sulphur fuel alone.

Scrubbers remove up to 94% of the particulate matter found in ships’ exhaust fumes, something that cannot be achieved by simply switching to low sulphur fuel.

Furthermore, the Clean Shipping Alliance 2020 earlier this year released the results of a three-year study of the largest washwater data set in marine history.

More than 280 samples were assessed against 54 different test parameters by ISO accredited independent laboratories. The results were then evaluated by classification Society DNV GL’s Maritime Advisory Services and the data compared to various water quality standards.

The research confirmed that the scrubber washwater consistently adhered to IMO regulations, as well as numerous international measurement criteria.

Apart from exonerating open loop scrubbers, the study emphasised an important point: the IMO already has strict standards by which it judges environmental safety. These standards are the foundation for IMO 2020 and were developed by marine and environmental experts – these standards were not drawn up by shipowners or refinery owners.

Open loop scrubbers not only satisfy these criteria, they are a specifically permitted solution for shipowners seeking IMO 2020 compliance.

Despite these facts, the scrubbing industry will clearly need to take the lead in educating lawmakers so that they can make more informed decisions, and help their constituents to do the same.

With so many well-reasoned and necessary environmental campaigns at play – IMO 2020 being one of them – it can be easy to get carried away with sentiment at the cost of science.

Politicians and regulators have a responsibility to remember this and and inform themselves of both sides of the debate. This is no time for ignorance.

Source: Pacific Green Technologies
Published: 15 August, 2019
 

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Alternative Fuels

Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

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Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Taiwanese shipping firm Yang Ming Marine Transport Corporation (Yang Ming) and South Korean shipbuilder Hanwha Ocean on Wednesday (2 September) signed a shipbuilding contract for six 13,000 TEU class LNG dual-fuel container vessels. 

The contract was signed by Dr. Chuck Tsai, Chairman of Yang Ming, and Mr. Charles Kim, CEO of Hanwha Ocean. The vessels are scheduled for delivery between 2028 and 2029. 

They will complement Yang Ming’s existing fleet of 10,000+ TEU vessels and serve as key vessels on East-West services, with deployment flexibility across trade lanes connecting Asia with the East and West Coasts of North America, South America, and the Mediterranean. 

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

“As Yang Ming transitions toward net-zero emissions, LNG provides a relatively mature and economically viable alternative fuel solution, capable of reducing greenhouse gas emissions by approximately 20%,” the company said. 

“At the same time, ammonia can serve as a carbon-free fuel by utilising converted LNG storage facilities, while offering relatively lower conversion costs and comparatively well-developed supply chains and infrastructure. The Ammonia Fuel Ready design will therefore provide Yang Ming with greater flexibility in responding to increasingly stringent international regulations on greenhouse gas emissions.”

In addition, the vessels will be equipped with Type B LNG fuel tanks with a design pressure of 1.0 bar to enhance the safety and efficiency of LNG operations, together with a range of energy-saving technologies, including Wind Shields, Rudder Bulbs, Pre-Swirl Stators, and Shore Power Systems. Smart ship technologies and cybersecurity protection features will also be incorporated to enhance operational efficiency, safety, and reliability while effectively reducing fuel consumption and greenhouse gas emissions.

Deliveries under Yang Ming’s next-generation fleet optimization plan commenced earlier this year. By 2030, a total of 24 new vessels are expected to enter service. 

This includes 18 LNG dual-fuel vessels—comprising five 15,500 TEU, seven 16,000 TEU, and the six 13,000 TEU vessels under this contract—alongside six 8,000 TEU methanol dual-fuel-ready ships. 

 

Photo credit: Yang Ming Marine Transport
Published: 4 September, 2026

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Alternative Fuels

LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Both secured AiP for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

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LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Lloyd’s Register (LR) and the Marine Design and Research Institute of China (MARIC) on Thursday (3 September) have secured Approval in Principle (AiP) for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

Announced at SMM 2026, the concept addresses one of the biggest investment challenges facing shipping today: the need to develop vessels and capabilities that can support a range of alternative fuel options and pathways as technologies, infrastructure and regulations evolve.

While LNG is already a mature fuel pathway, methanol and ammonia remain at an earlier stage of development, with questions around global fuel availability, infrastructure development, economics and long-term adoption.

The 114,000 DWT tanker concept has been designed as a product and crude oil carrier that can accommodate future conversion to LNG, methanol or ammonia as technologies, regulations and fuel supply chains mature. By incorporating conversion readiness at the design stage, the concept aims to reduce future retrofit complexity and provide owners with greater confidence when planning long-term fleet investments.

The design concept was reviewed against LR’s July 2026 class rules and regulations, including requirements relating to ships using gases and other low-flashpoint fuels, alongside relevant IACS Common Structural Rules for oil tankers. Final classification and statutory approval remain subject to full compliance with all applicable rules and regulations.

Theo Kourmpelis, Global Business Director for Tankers, Lloyd’s Register, said: “Shipowners are being asked to make major investment decisions today despite continued uncertainty around which fuels will dominate in the decades ahead. Alternative fuel solutions each offer potential pathways to compliance, but fuel infrastructure, regulation and economics continue to evolve at different speeds around the world.

“Designs that preserve flexibility will be critical in helping owners manage risk while preparing for multiple future scenarios.”

Si Nan, Marine & Offshore Marketing Department Vice Director, MARIC, said: “As the industry explores different decarbonisation pathways, shipowners need vessel designs that can adapt alongside technological and regulatory developments. This concept was developed specifically to provide greater fuel flexibility and long-term resilience, allowing owners to respond to changing market requirements without being locked into a single fuel strategy.

“Receiving Approval in Principle from Lloyd’s Register is an important milestone that validates the design concept and supports its future development.”

 

Photo credit: Lloyd’s Register
Published: 4 September, 2026

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Alternative Fuels

DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

LNG-fuelled vessels accounted for the vast majority of August activity while the strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year.

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DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

Latest data from classification society DNV’s Alternative Fuels Insight (AFI) platform alternative-fuelled vessel ordering was strong in August, with 52 new vessels added to the platform.

This is the highest monthly total since October 2024 and follows another active month in July, when 47 vessels were added to the database.

LNG-fuelled vessels accounted for the vast majority of August activity, with 46 orders recorded. The container segment led the way with 30 orders, while the car carrier segment contributed a further 12 LNG-fuelled vessels. In addition, four ethanol-fuelled bulk carriers and two hydrogen-powered bulk carriers were added during the month, as well as one LNG bunker vessel.

The strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year. In total, 242 alternative-fuelled vessel orders have been placed in the first eight months of 2026, representing a 27% increase compared with the same period in 2025.

LNG remains the dominant fuel choice, accounting for 63% of all alternative-fuelled vessel orders registered so far this year. Container vessels represent the largest share of these LNG orders (59%), followed by car carriers (30%).

Jason Stefanatos, Global Decarbonization Director at DNV Maritime, said: “The past two months have been particularly strong for alternative-fuelled vessel ordering, with August recording the highest monthly total we’ve seen since October 2024. This has helped lift year-to-date orders to a level well above the same period last year.

“LNG remains the leading fuel choice, driven largely by activity in the container and car carrier segments. These sectors have been among the earliest adopters of alternative fuels, supported by predictable liner operations and increasing demand from cargo owners to reduce emissions across supply chains. 

“For many owners, LNG offers a combination of emissions reductions, fuel availability and future flexibility while the longer-term fuel landscape continues to evolve. 

“At the same time, the latest figures include orders for ethanol- and hydrogen-fuelled vessels, highlighting that owners continue to explore a range of decarbonization pathways. Different segments are making different fuel choices, but the overall level of activity demonstrates continued investment in lower-emission shipping.”

Screenshot 2026 09 04 at 12.29.26 PM Screenshot 2026 09 04 at 12.29.36 PM

 

Photo credit: DNV
Published: 4 September, 2026

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